{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["concept or principle", "process characterization", "enabling technology", "manufacturing standard", "manufacturing process", "material"], "input": "Although AM used to be called Rapid Prototyping , one is now quite accustomed to having prototypes built quickly , but this is difficult to scale up ."}
{"concept or principle": ["prototypes"], "process characterization": [], "enabling technology": ["Rapid Prototyping"], "manufacturing standard": [], "manufacturing process": ["AM"], "material": ["be"]}